<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .box {
            position: absolute;
        }
    </style>
</head>

<body>
    <button>动画</button>
    <div class="box">⭐</div>
</body>
<script src="https://cdn.staticfile.org/jquery/1.10.2/jquery.min.js"></script>
<script>
    let left
    $(function () {
        $('button').click(function () {
            $('.box').animate({
                'font-size': 100,
                'top': 100,
                'left': 100,
                'opacity': 0.3
            }, 200, 'linear')
        })
    })
</script>

</html>